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StopTapBob
63 amp Rcd protecting 3 circuits 2 x 32 amp breakers and one 16 amp. Is it ok to add a 50 amp mcb for shower also. How do you calculate the maximum load on the Rcd ?
- Sep 5, 2010
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if possible, to save uprating the 63A RCD to 100A, fit RCBO for the shower. that is if you have a CU capable of this.
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pushrod
If those breakers are all going on the same rcd then there is a very good chance that they are going to "cook" it, depending on what the real load of those other circuits is. A cooker and kitchen ring, along with that shower will be curtains for that rcd.
80A ones will give you more leeway and are a fairly common size depending on make eg WYLEX but larger ones in some makes can be a real pig to find, or they don't fit
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Edit : looks like we are not able to link to TLC now - that link should have taken you to an 80A 30mA rcd for £23 ex vat.
80A ones will give you more leeway and are a fairly common size depending on make eg WYLEX but larger ones in some makes can be a real pig to find, or they don't fit
.Edit : looks like we are not able to link to TLC now - that link should have taken you to an 80A 30mA rcd for £23 ex vat.
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